串口通信SerialPort

1.NuGet 添加SerialPort

//配置SerialPort的名称，端口号，波特率等
SerialPort mySerialPort = new SerialPort("COM2");
mySerialPort.BaudRate = 9600;
mySerialPort.Parity=Parity.None;
mySerialPort.StopBits = StopBits.One;
mySerialPort.DataBits = 8;
mySerialPort.Handshake = Handshake.Non;
//数据接收事件
mySerialPort.DataReceived += new SerialDataReceivedEvenHandler(DataReceive_Method);
//打开串口
mySerialPort.Open();
//发送数据
mySerialPort.Write("Hello World");
mySerialPort.Write(new byte[] { 0x0A, 0xE2, 0xFF }, 0, 3);
//关闭串口
mySerialPort.Close();

private void port_DataReceived(object sender, SerialDataReceivedEventArgs e)
{            
   Console.WriteLine(mySerialPort.ReadExisting());
}